QMK Shifting Indicator LED

/*  https://www.reddit.com/r/olkb/comments/yeojrc/qmk_help_my_keyboard_freezes_after_running_this/
 *  Code to create a toggleable LED that continually shifts color when active.
 *  You can work with RGB values directly instead of HSV, if you prefer.
 *  Change "HSV ind_HSV" to "RGB ind_RGB" and delete the line with "hsv_to_rgb(ind_HSV);"
 *  This can go into keymap.c
 */

#define INDICATOR_LED_INDEX   15  // set the index of the LED you want to shift color
#define INDICATOR_UPDATE_TIME 10  // set how often the indicator will change hue, in milliseconds

bool indicator_active = true;     // turns the indicator LED color shifting on and off
HSV  ind_HSV = {HSV_BLUE};        // HSV variable to keep track of what color to set the LED to
uint16_t last_ind_update = 0;     // timer to keep track of the last time the indicator was updated

void rgb_matrix_indicators_user() {
    if (indicator_active) {
        if (timer_elapsed(last_ind_update) > INDICATOR_UPDATE_TIME) {  // if it's time for the next LED update
            last_ind_update = timer_read();  // update the LED timer

            // play with how you want to change the color each time here
            ind_HSV.h++;  // increment h, the hue portion of ind_HSV for the indicator


            RGB ind_RGB = hsv_to_rgb(ind_HSV);  // convert to RGB
            rgb_matrix_set_color(15, ind_RGB.r, ind_RGB.g, ind_RGB.b);  // set color of indicator LED
        }
    }
}